Dinosaur Explorers. #9, King of the seas
"Plunged way back into the past, Rain, Emily, and the rest of the Dinosaur Explorers, continue to make their way back to the present, but first they must take the plunge and submerge themselves into the prehistoric oceans. What they find is that the weightlessness of the water caters to larger creatures, sometimes bigger than dinosaurs themselves! Here they must dodge carnivorous ancient dolphins, elude massive crocodile creatures, and essentiall...